Top Inventors at Apt Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Don W. Sluder | 4 |
| 2 | William L. Welch | 4 |
| 3 | Yusei Miyamoto | 3 |
| #4 | Masashi Kajita | 2 |
| #5 | Naoki Toshima | 2 |
| #6 | Richard L. Cory | 2 |
| #7 | Wallace D. Hill | 2 |
| #8 | Charles Cummins | 1 |
| #9 | Christopher E. Wagner | 1 |
| #10 | Frank S. Kampmann | 1 |
| #11 | Hongmin Zhang | 1 |
| #12 | John Barrett | 1 |
| #13 | John K. Martinelli | 1 |
| #14 | Kumi Kameyama | 1 |
| #15 | Misako Kobayashi | 1 |
| #16 | Noboru Naito | 1 |
| #17 | R. Scot Foss | 1 |
| #18 | Takao Asano | 1 |
| #19 | Yoshihiko Awa | 1 |
| #20 | Paul J. Glace | 1 |
| #21 | Akemi Takayama | 1 |